Add EppSession for custom session management

spec/models/epp_session.rb

@@ -0,0 +1,21 @@
+require "rails_helper"
+
+describe EppSession do
+  let(:epp_session) { Fabricate(:epp_session) }
+
+  it 'has encrypted data' do
+    expect(epp_session.read_attribute(:data)).to_not be_blank
+    expect(epp_session.read_attribute(:data).class).to eq(String)
+    expect(epp_session.data.class).to eq(Hash)
+  end
+
+  it 'stores data' do
+    expect(epp_session[:epp_user_id]).to eq(1)
+
+    epp_session[:epp_user_id] = 3
+    expect(epp_session[:epp_user_id]).to eq(3)
+
+    epp_session =  EppSession.find_by(session_id: 'test')
+    expect(epp_session[:epp_user_id]).to eq(3)
+  end
+end